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Title:Chemical and structural investigation of the cobalt phthalocyanine
Authors:Stupar, Matija (Author)
Ressel, Barbara (Mentor) More about this mentor... New window
De Ninno, Giovanni (Mentor) More about this mentor... New window
Files:.pdf Matija_Stupar.pdf (2,96 MB)
 
Language:English
Work type:Master's thesis/paper (mb22)
Tipology:2.09 - Master's Thesis
Organization:FAN - Faculty of Applied Sciences
Abstract:In the last two decades, studies on organic molecules mimicking substances of fundamental importance in nature, like chlorophyll or hemoglobin, have attracted researchers’ attention. These molecules are building blocks for a family of materials also referred to as “organic semiconductors”. Such compounds can be implemented in numerous applications, ranging from data-storage to light harvesting. Some of their fundamental advantages include low cost, light weight, relatively easy engineering and mechanical flexibility, compatible with bending plastic substrates. In this thesis work we investigated the chemical, structural and electronic properties of cobalt phthalocyanines (CoPc). These molecules have promising applications in the field of magnetic data storage and spintronics in general, due to the ferromagnetic properties of the cobalt atom. Several techniques like photoemission core-level spectroscopy and valence band spectroscopy, together with X-ray absorption, have been used in order to determine the CoPc properties in gaseous phase, i.e. in the absence of interaction with the surrounding environment. Another set of experiments was devoted to the commissioning of the CITIUS time-resolved photoemission setup, that will be used in future studies of CoPc molecules on surfaces.
Keywords:Cobalt phthalocyanine (CoPc), photoemission spectroscopy (PES), X-ray absorption spectroscopy (XAS), synchrotron radiation, laser, high order harmonic generation (HHG), time resolved spectroscopy
Year of publishing:2015
Source:Nova Gorica
COBISS_ID:4044283 Link is opened in a new window
URN:URN:SI:UNG:REP:KVS5WB8I
Views:4127
Downloads:194
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Secondary language

Language:Slovenian
Title:KEMIČNA IN STRUKTURNA RAZISKAVA MOLEKULE KOBALTOVEGA FTALOCIANINA
Abstract:Organske molekule, ki so po sestavi podobne ključnim molekulam v naravi, kot sta klorofil ter hemoglobin, so v zadnjih letih pritegnile pozornost raziskovalcev. Omenjene molekule so gradniki materialov, ki jim pravimo tudi organski polprevodniki. Njihova uporaba sega na mnoga področja, npr. od naprav za shranjevanje podatkov do sončnih celic. Nekatere izmed prednosti the materialov so nizka cena, nizka teža, preprost inženiring in mehanska upogljivost, ki omogočajo njihovo uporabo na upogljivih plastičnih substratih. V magistrski nalogi bodo predstavljeni rezultati raziskav kemičnih, strukturnih in elektronskih lastnosti kobaltovega ftalocianina; ta molekula je zaradi feromagnetnih lastnosti kobaltovega atoma še posebej zanimiva za uporabo na področjih magnetnega shranjevanja podatkov in spintronike. Pri raziskavah lastnosti kobaltovega ftalocianina v plinastem stanju, t. j. v odsotnosti interakcij z okolico, so uporabljene tehnike, kot sta fotoemisijska spektroskopija notranjih in valenčnih elektronskih stanj ter rentgenska absorpcijska spektroskopija. Lastnosti molekul so bile preučevane v visokem vakuumu. Preostali poskusi, ki so predstavljeni v nalogi, so bili namenjeni karakterizaciji novega svetlobnega vira CITIUS, ki ga bomo v prihodnjih raziskavah uporabljali za časovno odvisne fotoemisijske meritve na molekulah kobaltovega ftalocianina na površinah.
Keywords:kobaltov ftalocianin (CoPc), fotoemisijska spektroskopija (PES), roentgenska absorbcijska spektroskopija (XAS), sinhrotronska emisija, laser, generacija visokih harmonikov, časovno odvisna spektroskopija


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